Marcus has acted for Disney, NBC, Seven Bucks, Opera Queensland, Queensland Music Festival, The Hive Collective, Metro Arts, Playlab, Room to Play, Big Scary Animal and Empire Theatres.

Marcus is a respected Australian voice and text coach, and Patsy Rodenburg Associate, trained by Patsy Rodenburg OBE since 2018.​  He has a national and international clientele of artistic and corporate clients who work with him to master the art of easy and impactful communication.​

Marcus has voiced campaigns for national and international brands and organisations, including Warner Bros Movie World, Village Roadshow, news.com, Telstra, Dairy Farmers, SWYFTX, Quon, UD Trucks, The Queensland Government, and more.